#include <iostream>
#include <math.h>
#include <fstream>
using namespace std;
int main()
{
int test;
cin >> test;
while(test--)
{
int len;
cin >> len;
float wdt = (float)(len * 60)/100.00;
float rad = (float)(len * 20)/100.00;
float red = (float)(acos(-1) * rad * rad);
float grn = (float)(len * wdt);
printf("%.2f %.2f\n", red, grn - red );
}
return 0;
}
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